Figure 1: Causes of the difference between the RPI and CPIH inflation rates, 2006 to 2018
Source: Office for National Statistics
When publishing this article we stated that the estimates “may be subject to small revisions”. In September 2018, having reviewed and improved the differences between the unrounded inflation rates, we published revised component series. The minor revisions affected the “Housing depreciation and other housing costs (RPI)" and the "Other differences in coverage" series and are as a result of reclassifying a single item. The headline difference was unaffected by the change.